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django-thumbs-v2-0.4.1
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مشاهده بیشترتوضیحات
The easiest way to create thumbnails for your images with Django. Works with any storage backend.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-thumbs-v2-0.4.1 |
| نام | django-thumbs-v2 |
| نسخه کتابخانه | 0.4.1 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Ravi Raja Merugu |
| ایمیل نویسنده | rrmerugu@gmail.com |
| آدرس صفحه اصلی | https://github.com/rrmerugu/django-thumbs |
| آدرس اینترنتی | https://pypi.org/project/django-thumbs-v2/ |
| مجوز | - |
# django-thumbs
Create thumbnails for your images with Django.
## Fork
Forked from <https://code.google.com/p/django-thumbs/>.
## Features
* Easy to integrate in your code (no database changes, works as an `ImageField`)
* Works with any storage backend
* Generates thumbnails after image is uploaded into memory
* Deletes thumbnails when the image file is deleted
* Provides easy access to the thumbnails' URLs (similar method as with `ImageField`)
## Example
from django.db import models
from django_thumbs.fields import ImageThumbsField
class Person(models.Model):
SIZES = (
{'code': 'avatar', 'wxh': '125x125', 'resize': 'crop'},
{'code': 'm', 'wxh': '640x480', 'resize': 'scale'},
{'code': '150', 'wxh': '150x150'}, # 'resize' defaults to 'scale'
)
photo = ImageThumbsField(upload_to='images', sizes=SIZES)
The field `photo` has a `sizes` attribute specifying desired sizes for the thumbnails. This field works the same way as `ImageField` but it also creates the desired thumbnails when uploading a new file and deletes the thumbnails when deleting the file.
With `ImageThumbsField` you retrieve the URL for every thumbnail specifying its size code. In this example we use `someone.photo.url_avatar`, `someone.photo.url_150` or `someone.photo.url_m` to get the thumbnail URL.
## Install
Install django-thumbs into a virtualenv using pip:
(env)$ pip install git+https://github.com/rrmerugu/django-thumbs-v2.git#egg=django-thumbs-v2
Add `thumbs` to your installed apps:
INSTALLED_APPS = (
# ...
'django_thumbs',
)
## Usage
* Import it in your `models.py` and replace `ImageField` with `ImageThumbsField` in your model
* Add a `sizes` attribute with a list of sizes you want to use for the thumbnails
* Make sure you have defined `STATIC_URL` in your settings.py
## Sizes
Each size is a dictionary that defines a thumbnail. For example,
SIZES = (
{'code': 'avatar', 'wxh': '125x125', 'resize': 'crop'},
{'code': 'm', 'wxh': '640x480', 'resize': 'scale'},
{'code': 'flatrow', 'wxh': 'x120'},
{'code': '150', 'wxh': '150x150'}, # 'resize' defaults to 'scale'
)
Size validation errors will raise `SizeError`.
### code (required)
matches re: `RE_CODE`
`code` is the size name. It appears in the thumb filename separated by `THUMBS_DELIMITER`. For example, `'original.jpg'` becomes `'original-small.jpg'` for the default delimiter `'-'` and code `'small'`.
### wxh (required)
matches re: `RE_WXH`
`wxh` is the width x height as a string.
Fixed width images are supported with `240x`. The thumbnail will be scaled
down *or up* to a 240 pixel width. Fixed height images are similarly
supported with `90x`.
### resize (optional)
default: `'scale'`
options: `'scale'` or `'crop'`
`resize` determines how the image will be resized.
`'scale'` resizes the thumb to `wxh`. For example, a 2000 x 1000 image will become 500 x 250 for `'scale'` and a `wxh` of `'500x500'`. `'scale'` does not enlarge a photo. A 200 x 100 image will remain 200 x 100 for `'scale'` and `wxh` of `'500x500'`. `'scale'` does not crop.
`'crop'` crops and centers the image fit `wxh` exactly. For example, a 2000 x 1000 image will become 500 x 500 for `'crop'` and a `wxh` of `'500x500'`. `'crop'` will enlarge a photo to exactly fit `wxh`. A 200 x 100 image will enlarge and crop to 500 x 500 for `'crop'` and `wxh` of `'500x500'`.
## Settings
`django-thumbs` will use default settings unless these settings are found in Django settings.
### THUMBS_DELIMITER
default: `'-'`
`THUMBS_DELIMITER` sets the delimiter between the original image base name and the thumb size `code`. For example, `'original.jpg'` becomes `'original-small.jpg'` for the default delimiter `'-'` and code `'small'`.
### THUMBS_JPG
default: `False`
Set `THUMBS_JPG` to `True` to force all thumbnails to `.jpg` format and file extension regardless of original image format or file extension.
### THUMBS_QUALITY
default: `75`
`THUMBS_QUALITY` sets PIL quality. See <http://www.pythonware.com/library/pil/handbook/format-jpeg.htm>
### THUMBS_OPTIMIZE
default: `True`
`THUMBS_OPTIMIZE` sets PIL optimize option on JPG or PNG images.
### THUMBS_PROGRESSIVE
default: `False`
`THUMBS_PROGRESSIVE` sets PIL progressive option on JPG images.
### THUMBS_AUTOROTATE
default: `True`
`THUMBS_AUTOROTATE` rotates thumbnails based on original EXIF data, if any.
## PublicS3BotoStorage
`PublicS3BotoStorage` generates clean URLs for Amazon S3 in code--without calling Amazon and without S3 querystring auth and expires. Hooray! URLs are `'public-read'`.
`PublicS3BotoStorage` is based on `S3BotoStorage_AllPublic` from <https://github.com/duointeractive/django-athumb>.
Add to `requirements.txt`:
django-storages==1.1.4
boto==2.5.2
In Django settings, instead of
DEFAULT_FILE_STORAGE = 'storages.backends.s3boto.S3BotoStorage'
use `PublicS3BotoStorage`:
DEFAULT_FILE_STORAGE = 'django_thumbs.backends.PublicS3BotoStorage'
`PublicS3BotoStorage` looks for `AWS_S3_SECURE_URLS` and `AWS_S3_CUSTOM_DOMAIN` settings. `AWS_S3_SECURE_URLS` sets `https` or `http`. `AWS_S3_CUSTOM_DOMAIN` sets custom domain or `s3.amazonaws.com`.
## Uninstall
At any time you can go back and use `ImageField` again without altering the database or anything else. Just replace `ImageThumbsField` with `ImageField` again and make sure you delete the `sizes` attribute. Everything will work the same way it worked before using django-thumbs. Just remember to delete generated thumbnails in the case you don't want to have them anymore.
نحوه نصب
نصب پکیج whl django-thumbs-v2-0.4.1:
pip install django-thumbs-v2-0.4.1.whl
نصب پکیج tar.gz django-thumbs-v2-0.4.1:
pip install django-thumbs-v2-0.4.1.tar.gz